CT1 is a hybrid sealant and construction adhesive manufactured by C-Tec, the company behind the UK's most-specified trade sealant range. It is built around C-Tec's patented TRIBRID Technology, a hybrid-polymer chemistry that the manufacturer independently tested under BS EN ISO 8339:2005, proven to be up to 360% stronger with 250% more elongation than traditional hybrid polymers.
For an electrician, plumber or general builder, CT1 replaces a shelf full of single-purpose products. One 290ml cartridge can step in for silicone sealant, sanitary silicone, acrylic sealant, butyl rubber, polyurethane sealant, and a range of wood and PU adhesives. Fewer cartridges to carry, fewer chances of grabbing the wrong product on a job.
The product bonds without primers or mechanical fixings to virtually any building substrate: metal (including lead), glass, mirrors, all woods, MDF, polystyrene, fibreglass, concrete, most natural stones without staining, and the majority of synthetic materials and plastics. The exceptions are PP, PE and PTFE, which generally resist adhesion across the whole hybrid-polymer category.
CT1 also carries the certifications that matter for specification work: EC1 Plus A+ Indoor Air Comfort Gold, ISEGA approval for food preparation environments, and approval by the Norwegian Asthma and Allergy Association (NAAF). It is odourless, solvent-free, UV-resistant, and rated for use in salt-water and marine environments.
On a typical electrical job, CT1 turns up in several places: sealing around accessory back boxes where they meet rendered or tiled walls, bedding mirrors and touch-control glass plates, anchoring trunking and conduit to brickwork before mechanical fixings go in, sealing cable entry points on outdoor boxes against moisture ingress, and fixing escutcheons and finishing trim where you cannot drill.
